Nissan March K13. Instruction — part 138
PRECAUTIONS
EC-13
< PRECAUTION >
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• When measuring ECM signals with a circuit tester, never allow
the two tester probes to contact.
Accidental contact of probes will cause a short circuit and
damage the ECM power transistor.
• Do not operate fuel pump when there is no fuel in lines.
• Tighten fuel hose clamps to the specified torque.
• Do not depress accelerator pedal when starting.
• Immediately after starting, do not rev up engine unnecessar-
ily.
• Do not rev up engine just prior to shutdown.
• When installing C.B. ham radio or a mobile phone, be sure to
observe the following as it may adversely affect electronic
control systems depending on installation location.
- Keep the antenna as far as possible from the electronic con-
trol units.
- Keep the antenna feeder line more than 20 cm (8 in) away
from the harness of electronic controls.
Do not let them run parallel for a long distance.
- Adjust the antenna and feeder line so that the standing-wave
ratio can be kept smaller.
- Be sure to ground the radio to vehicle body.
SEF348N
SEF709Y
SEF708Y
EC-14
< PREPARATION >
[HR12DE (TYPE 1)]
PREPARATION
PREPARATION
PREPARATION
Special Service Tools
INFOID:0000000005989139
Commercial Service Tools
INFOID:0000000005989140
Tool number
Tool name
Description
KV10120000
Fuel tube adapter
Measuring fuel pressure
JSBIA0410ZZ
Tool name
Description
Oxygen sensor thread
cleaner
Reconditioning the exhaust system threads before
installing a new oxygen sensor. Use with anti-
seize lubricant shown below.
a: 18 mm diameter with pitch 1.5 mm for Zirco-
nia Oxygen Sensor
b: 12 mm diameter with pitch 1.25 mm for Tita-
nia Oxygen Sensor
Anti-seize lubricant
i.e.: (Permatex
TM
133AR or equivalent
meeting MIL specifica-
tion MIL-A-907)
Lubricating oxygen sensor thread cleaning tool
when reconditioning exhaust system threads.
AEM488
S-NT779
STRUCTURE AND OPERATION
EC-15
< SYSTEM DESCRIPTION >
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SYSTEM DESCRIPTION
STRUCTURE AND OPERATION
Positive Crankcase Ventilation
INFOID:0000000005989167
This system returns blow-by gas to the intake manifold.
The positive crankcase ventilation (PCV) valve is provided to conduct crankcase blow-by gas to the intake
manifold.
During partial throttle operation of the engine, the intake manifold sucks the blow-by gas through the PCV
valve.
Normally, the capacity of the valve is sufficient to handle any blow-by and a small amount of ventilating air.
The ventilating air is then drawn from the air inlet tubes into the crankcase. In this process the air passes
through the hose connecting air inlet tubes to rocker cover.
Under full-throttle condition, the manifold vacuum is insufficient to draw the blow-by flow through the valve.
The flow goes through the hose connection in the reverse direction.
On vehicles with an excessively high blow-by, the valve does not
meet the requirement. This is because some of the flow will go
through the hose connection to the air inlet tubes under all condi-
tions.
PBIB2962E
PBIB1588E
EC-16
< SYSTEM DESCRIPTION >
[HR12DE (TYPE 1)]
COMPONENT PARTS
COMPONENT PARTS
Component Parts Location
INFOID:0000000005989141
ENGINE ROOM COMPARTMENT
*: Not used for engine control system.
ENGINE COMPARTMENT
1.
Battery current sensor (with battery
temperature sensor
*
)
Refer to
Dummy cross-refer-
ence("XX-XX")
2.
ECM
3.
IPDM E/R
Refer to
Dummy cross-refer-
ence("XX-XX")
4.
Mass air flow sensor (with intake air-
temperature sensor)
5.
Electric throttle control actuator (with
built in throttle position sensor and
throttle control motor)
6.
EVAP canister purge volume control
solenoid valve
7.
Refrigerant pressure sensor
Refer to
Dummy cross-refer-
ence("XX-XX")
8.
Cooling fan motor
Refer to
Dummy cross-refer-
ence("XX-XX")
JSBIA0325ZZ
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